The United Arab Emirates have the dubious honor of having the world's highest per capita carbon footprint, and that's why the government in Abu Dhabi has plans to build the globe's first "Zero Carbon Cityï¿½

The answer to today's Geo Quiz is 21. As in -- there are 21 countries that boast a Mediterranean coastline. Reporter Ben Gilbert is along the coast in southern Lebanon, where two women are helping to protect the Mediterranean's endangered sea turtles.

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